LandOfFree - US Patents - Listing for Pipe joints or couplings,Particular interface,Tapered

Pipe joints or couplings – Particular interface – Tapered

Coupling for well casings

Pipe joints or couplings – Particular interface – Tapered

Coupling hardware

Pipe joints or couplings – Particular interface – Tapered

Couplings for standard A.P.I. tubings and casings

Pipe joints or couplings – Particular interface – Tapered

Cylindro-conical pipe joint

Pipe joints or couplings – Particular interface – Tapered

Deformable metal-to-metal seal

Pipe joints or couplings – Particular interface – Tapered

Device for clamping a fluidic component

Pipe joints or couplings – Particular interface – Tapered

Device for locking and sealing standard cone-socket joints for l

Pipe joints or couplings – Particular interface – Tapered

Differential wedge thread for threaded connector

Pipe joints or couplings – Particular interface – Tapered

Double cone coupling nipple of a steel tubing and method of maki

Pipe joints or couplings – Particular interface – Tapered

Double flex seal for tubular connection

Pipe joints or couplings – Particular interface – Tapered

Double shoulder oilfield tubular connection

Pipe joints or couplings – Particular interface – Tapered

Dovetail connection for pin and box joints

Pipe joints or couplings – Particular interface – Tapered

Dovetail connection for pin and box joints

Pipe joints or couplings – Particular interface – Tapered

Drill collar box

Pipe joints or couplings – Particular interface – Tapered

Drill collar connections

Pipe joints or couplings – Particular interface – Tapered

Drill pipe coupling

Pipe joints or couplings – Particular interface – Tapered

Drill pipe with improved connectors

Pipe joints or couplings – Particular interface – Tapered

Drill rod coupling

Pipe joints or couplings – Particular interface – Tapered

Drill stem connection